JP2006264845A - Lift - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lift capable of allowing delivering of goods to a carrying conveyor by a conveyor part and inexpensively providing a stopper member for receiving and restricting movement of the goods mounted on a mounting part to the carrying conveyor side. <P>SOLUTION: The lift is equipped with the conveyor part for mounting and conveying the goods A placed on the mounting part 6 so as to deliver it to the carrying conveyor 3. The stopper member 20, for switching between a receiving and stopping state where the movement of the mounted goods A is received and restricted from moving to the carrying conveyor 3 side, and a receiving and stopping released state where the delivery of goods A to the carrying conveyor 3 by the conveyor part 19 is allowed, is switched to the receiving and stopping state when the mounting part 6 is lowered to a lowering position. The stopper member 20 is provided in a position fixed state so that when the mounting part 6 is elevated to an elevating position, the state is switched to the receiving and stopping released state. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention is configured such that a placing portion for placing and supporting an article is movable up and down to a rising position for delivering the article to a conveyor conveyor provided on the side, and a lowered position for placing an article carried from the outside. Relates to the lifting device.

Such a lift device is loaded from the outside into the placing section lowered to the lowered position when the articles conveyed from the outside cannot be directly delivered to the conveyor because the conveyor is provided at a high position from the floor. The article to be loaded is placed, the placing part is raised to the raised position, the article placed at this raised position is delivered to the conveyor, and the article carried from the outside is used to be delivered to the conveyor. It is what
In such a lift device, the transport conveyor includes a fixed conveyor portion provided in a fixed state and a movable conveyor portion provided movably along the transport direction, and the movable conveyor portion is separated from the lift device. It is configured to be freely movable between a lift side position for receiving articles and a conveyor side position for delivering articles to the fixed conveyor part, placing articles to be carried in from the outside on the placing section at the lowered position, and placing the placing section from the raised position After moving up to the upper position, moving the moving conveyor part to the lift side position, lowering the loading part to the lowered position, the article is transferred to the moving conveyor part in the conveying conveyor at the raised position in the middle of the lowering. (For example, refer patent document 1).

JP-A-10-109707

  In the case of the lift device, it is necessary to provide a moving conveyor portion on the transport conveyor that is provided on the side while the mounting portion is configured to be movable up and down, which increases the cost of disposing the lift device. Therefore, by placing a conveyor portion that places and conveys the placed article on the conveyor so that it is delivered to the conveyor, the article to be carried from the outside is placed on the placement section that has been lowered to the lowered position. The article placed on the conveyor part can be transferred to the conveyor by moving the article up to the raised position on the conveyor, and the loading part can be configured to be raised and lowered. Since it is not necessary to provide a moving conveyor part in the conveyance conveyor provided in a side, the cost which arrange | positions a lift apparatus can be restrained low.

However, as described above, when the lift device is configured to place and convey the article on the conveyor portion provided in the loading portion and deliver it to the conveyance conveyor, the lift device protrudes above the conveyance surface of the conveyor portion. If the stopper member is provided with a stopper member and the movement of the article placed on the placing portion to the conveyor side is received and regulated by the stopper member to prevent the article from contacting the conveyor, the stopper member Since it protrudes above the conveyance surface of a conveyor part, the articles | goods mounted in the mounting part cannot be mounted and conveyed in a conveyor part, and articles | goods cannot be delivered to a conveyance conveyor.
Therefore, an elevating sensor that detects that the placing portion has been lowered to the lowered position and that the placing portion has been raised to the raised position, and a drive motor that moves the stopper member up and down based on the detection result of this sensor, When the mounting unit is lowered to the lowered position, the receiving unit is in a receiving state that receives and regulates the movement of articles placed on the conveyor unit in the lowered position protruding above the conveying surface of the conveyor to the conveying conveyor side. When the mounting part is raised to the raised position, the receiving release state that allows the article to be transferred to the conveyor by the conveyor part located below the conveyor surface of the conveyor part in the elevated part As described above, it is conceivable that the operation of the drive motor is controlled based on the detection result of the lift sensor, but with such a configuration, the lift sensor and the drive motor are provided. Was achieved cost of providing the stopper device is increased by Rukoto.

  The present invention has been made in view of the above-described actual situation, and allows the delivery of articles to the conveyor by the conveyor portion and accepts and regulates the movement of articles placed on the placing section toward the conveyor. It is in the point which provides the lift apparatus which can provide a stopper member cheaply.

In order to achieve this object, the first characteristic configuration of the lift device according to the present invention includes a rising position in which a placing portion for placing and supporting the article delivers the article to a conveyance conveyor provided on the side, and an external position In a lift device configured to be movable up and down to a lowered position on which an article to be carried from is placed,
The placing section includes a conveyor portion that places and conveys the loaded article to the conveyor, and protrudes above the conveyor surface of the conveyor portion in the lowered position. A receiving state for receiving and restricting the movement of articles placed on the conveying conveyor side, and the conveying conveyor by the conveyor portion positioned below the conveying surface of the conveyor portion in the placing portion before the ascending position A stopper member that is switched to a receiving release state that allows delivery of an article to the switch is switched to the receiving state when the mounting portion is lowered to the lowered position, and the mounting portion is moved to the raised position. It is provided in a fixed position so that it can be switched to the unacknowledged state by rising.

  In other words, the stopper member is switched to the receiving state when the placing portion is lowered to the lowered position. Therefore, the movement of the article placed on the placing portion to the conveyor side is restricted by the stopper member and the article is restricted. Can be prevented from coming into contact with the conveyor, and the stopper is switched to the unreceived state by raising the placement portion to the raised position, so that the placement portion is placed and conveyed by the conveyor portion. The article can be delivered to the conveyor without being restricted by the stopper member.

  In other words, since the switching between the receiving state and the receiving releasing state of the stopper member can be switched by raising and lowering the mounting portion, the stopper member only needs to be provided in a fixed position, and the stopper member is in the receiving state or the receiving release state. There is no need to provide a drive motor for switching to the position or a detection sensor for detecting that the mounting portion has been raised to the raised position or lowered to the lowered position, and a stopper member that can be switched to the receiving state or the receiving release state. It is possible to provide a low-cost stopper member that allows the article to be transferred to the conveyor by the conveyor part and accepts and restricts the movement of the article placed on the loading unit to the conveyor side. The lift apparatus which can be provided was able to be provided.

  A second characteristic configuration of the lift device according to the present invention is that, in the first characteristic configuration, the stopper member is configured by a plate-like body that is wide in a lateral width direction that intersects the transport direction.

  In other words, by configuring the stopper member with a plate-like body that is wide in the width direction, the article can be received in a plane, and therefore the posture of the article is less likely to collapse when receiving and restricting the placed article. it can.

  A third feature configuration of the lift device according to the present invention is the first or second feature configuration, wherein the placement portion is provided so as to be movable up and down with respect to a base installed on the floor surface, and the stopper member is , In the point standing on the base.

  That is, since the stopper member is configured to stand on the base, for example, the stopper member is configured to be switched between a receiving state and a receiving release state by inserting and removing the stopper member at a narrow interval by raising and lowering the lifting platform. Even in this case, it is easy to provide the stopper member in a state in which the stopper member is aligned with the mounting table so that the stopper member can be inserted and removed accurately.

  According to a fourth characteristic configuration of the lift device according to the present invention, in the third characteristic configuration, the conveyor portion is configured as a roller type in which a plurality of rollers are arranged in parallel along the transport direction, and the stopper member is described above. In the point which is standingly arranged in the said base so that between the said rollers arranged in parallel by raising / lowering of a mounting part may be inserted / extracted.

  In other words, since the stopper member is moved up and down by utilizing the gap formed between the rollers arranged side by side in the conveyor portion configured in a roller type, the space between the mounting portion and the conveyor is Compared to the case where the lift device is installed away from the conveyor so that a gap is formed so that the stopper member moves up and down, the distance between the loading section and the conveyor can be reduced, so that the conveyor can be conveyed from the conveyor. The delivery of articles to the conveyor can be performed smoothly.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the lift device 1 places an article A, which has been carried in from the outside by a handlift equipped with a fork 2, on the placement unit 6, lifts the placement unit 6, and then places the article A on the placement unit 6. The conveyor portion 19 of the loading unit 6 is used so as to be transferred to the conveyor 3 provided on the side, and the conveyor 3 is provided on one side of the lift device 1 from the other side. The article A is configured to be placed thereon. The article A is composed of a pallet and a transported object placed and supported on the pallet.

Next, the lift device 1 will be described. The front-rear direction is set with one side provided with the conveyor 3 as the front and the other side on which the article A is placed as the rear, and the direction intersecting with the front-rear direction is the left-right direction. Will be described.
As shown in FIGS. 2 and 3, the lift device 1 is provided in a recessed portion f that is recessed in the floor surface F, and a base 8 that is installed on the bottom surface of the recessed portion f in the floor surface F. And a mounting portion 6 provided so as to be movable up and down with respect to the base 8 and a lifting device 9 for moving the lifting platform 6 up and down based on a command from an operation button (not shown). The apparatus 9 is configured to move the mounting unit 6 up and down. Then, the loading unit 6 is moved up and down by the lifting device 9, so that the ascending position (see FIG. 6 (c)) that delivers the article A to the conveyor 3 provided on the side and the loading unit 6 is carried in from the outside. It can be moved up and down to a lowered position (see FIGS. 6A and 6B) on which the article A to be placed is placed.

  The lifting device 9 will be further described. As shown in FIGS. 2 to 4, the elevating device 9 is provided with a pair of left and right X-shaped link mechanisms 11 in which the first link 11 a and the second link 11 b are rotatably connected to each other at the center. Each of the first links 11a is pivotably connected at one end side to the front portion of the base 8, and the other end side is swingable to the rear portion of the mounting portion 6 and is slidable in the horizontal direction. Each of the second links 11b is engaged with one end of the second link 11b so as to be swingable, and the other end is swingable near the rear portion of the base 8 and slides. The pair of left and right link mechanisms 11 are engaged with each other freely, and are configured to move up and down while maintaining the horizontal posture by changing the posture in synchronization.

  As shown in FIG. 4, in the lifting device 9, the drive motor 12 and the spiral shaft 14 are interlocked and connected so that the drive motor 12 rotates the spiral shaft 14 forward and backward via the speed reducer 13. The left and right central portions of the slide member 15 slidably movable along the front-rear direction are screwed together. And the cam part 15a provided with the cam surface which pushes up with respect to the guide roller 17 provided in the 2nd link 11b in the link mechanism 11 is provided in the right-and-left both ends of the slide member 15, This cam part 15a. The guide rail 16 is guided so as to slide along the front-rear direction, and the slide movement is restricted at the front-rear ends of the guide rail 16. Further, the biting portion 15a is configured such that the cam surface acts on the guide roller 17 by the sliding movement of the slide member 15 along the front-rear direction, and the guide roller 17 is moved in the vertical direction.

That is, when the helical shaft 14 is rotated forward by the drive motor 12, the slide member 15 is slid forward, whereby the guide roller 17 is pushed up while being guided by the cam surface of the cam portion 15a to be linked. The posture is changed so that the interval between the front end sides and the rear end sides of the first link 11a and the second link 11b is widened, and the placement unit 6 is raised to the raised position.
Further, when the spiral shaft 14 is rotated in the reverse direction by the drive motor 12, the slide member 15 slides backward, so that the guide roller 17 is guided by the cam surface of the cam portion 15a and the weight of the placement portion 6 is reduced. And the posture of the link mechanism 11 is changed so that the distance between the front end sides and the rear end sides of the first link 11a and the second link 11b is narrowed, and the mounting portion 6 is lowered to the lowered position. Is done.

As shown in FIG. 2 and FIG. 3, the placement unit 6 is configured to include a conveyor part 19 that places and conveys the loaded article A to the transport conveyor 3, and the conveyor part 19 includes: It is configured as a roller type in which a plurality of rollers 19a are arranged in parallel along the conveyance direction, that is, the front-rear direction. That is, the article A placed on the placement unit 6 is placed and conveyed by rotating the roller 19a with a motor (not shown) in a state where the placement unit 6 is raised to the raised position, and is transferred to the conveyance conveyor 3. Delivered.
As shown in FIG. 6, in the state where the mounting portion 6 is lowered to the lowered position, the height of the conveying surface of the conveyor portion 19 and the height of the floor surface F are the same height or substantially the same height. In the state where the mounting unit 6 is raised to the raised position, the mounting unit 6 is set so that the height of the transport surface of the conveyor portion 19 and the height of the transport surface of the transport conveyor 3 are the same or substantially the same. The ascending position and the descending position are set.
In addition, the conveyance conveyor 3 is also comprised by the roller type, and is comprised so that the articles | goods A delivered from the mounting part 6 may be mounted and conveyed.

  The lift device 1 is provided with a stopper member 20 capable of receiving and regulating the movement of the article A to be placed to the transport conveyor 3 side, and the stopper member 20 is provided in the placement unit 6 at the lowered position. A receiving state for receiving and restricting the movement of the article A, which is projected and placed above the conveying surface of the conveyor part 19, toward the conveying conveyor 3, and the conveying of the conveyor part 19 in the placing portion 6 at the rising position. It is configured to be switched to a receiving release state that allows the delivery of the article A to the transport conveyor 3 by the conveyor portion 19 that is positioned below the surface.

The switching between the receiving state and the receiving release state of the stopper member 20 is switched as the mounting portion 6 moves up and down.
That is, the height of the stopper member 20 provided in a fixed position on the base 8 is set to be higher than the height of the floor surface F and lower than the height of the transport surface of the transport conveyor 3, in other words, to the lowered position. It is set so as to be higher than the height of the conveying surface of the mounting unit 6 positioned and lower than the height of the conveying surface of the mounting unit 6 positioned at the raised position, and the mounting unit 6 is lowered to the lowered position. Thus, the receiving unit is switched to the receiving state, and the receiving unit 6 is configured to be switched to the receiving cancellation state when the mounting portion 6 is moved up to the raised position.

  As shown in FIGS. 4 and 5, the stopper member 20 is configured by a plate-like body that is wide in the width direction intersecting the front-rear direction, that is, the left-right direction, and is positioned between the pair of left and right link mechanisms 11. In this way, the base 8 is erected at a position below the conveyor portion 19 at the front end portion. The thickness of the stopper member 20 in the front-rear direction is smaller than the interval between the adjacent rollers 19a, and the stopper member 20 is configured to be inserted and removed between the adjacent rollers 19a by raising and lowering the mounting portion 6.

Therefore, when the article A to be carried in from the outside while being supported by the fork device 2 by the hand lift is transferred to the transport conveyor 3, the lowering of the placement portion 6 is instructed by operating the operation button (not shown). The placing portion 6 is lowered to the lowered position, and the article A is placed on the placing portion 6. As described above, when the article A is placed on the placement portion 6, as shown in FIGS. 6A and 6B, the placement portion 6 is lowered to the lowered position, whereby the stopper member 20 is switched to the receiving state. Therefore, the pallet of the article A to be placed can be received and regulated by the stopper member 20 before the conveyor 3 to prevent the conveyed object in the article A from contacting the conveyor 3. In FIG. 6, the front wheels of the handlift are omitted.
Then, if the placement unit 6 is commanded to rise by operating the operation button (not shown), after the placement unit 6 rises to the raised position, the conveyor portion 19 and the transfer conveyor 3 are activated, and the article A is transferred to the transfer conveyor 3. Delivered. When the article A is delivered to the transport conveyor 3 as described above, as shown in FIG. 6C, the stopper member 20 is switched to the reception release state by the placement unit 6 rising to the raised position. Therefore, the article A placed and conveyed by the conveyor portion is not received and regulated by the stopper member 20, and the article A can be delivered to the conveyance conveyor 3.

[Another embodiment]
(1) In the above-described embodiment, the lift device 1 is used when the article A is carried in from the outside in such a manner that the article A carried in from the outside is placed on the placement unit 6 and delivered to the transfer conveyor 19. The lift device 1 may also be used when the article A to be carried out is received from the conveyor 3 to the placement unit 6 and is lowered from the placement unit 6 by the fork device 2 to carry out the article A to the outside. .

(2) In the said embodiment, although the stopper member 20 was comprised by the plate-shaped body, the shape of the plate-shaped body 20 can be changed suitably, for example, the some stopper member 20 was arranged in the horizontal width direction. You may comprise with a rod-shaped body.

(3) In the above embodiment, the stopper member 20 is provided in a fixed position on the base 8. However, the stopper member 20 is provided in a fixed position on the floor surface F or the bottom surface or side surface of the recessed portion f on the floor surface F. Alternatively, as shown in FIG. 7, the stopper member 20 may be provided in a fixed position on the conveyor 3.

(4) In the above embodiment, the entire lower surface of the article A is placed and supported by the placing portion 6 having a larger width than the article A. However, as shown in FIG. A pair of placement units 6 may be provided, and the pair of placement units 6 may be configured to place and support the left and right side portions of the article A.
Moreover, in the said embodiment, although the conveyor part 19 was comprised by the roller type which arranged the some roller 19a in parallel along the conveyance direction, as shown in FIG. 7, it is chain 23 to drive sprocket 21 and driven sprocket 22. You may comprise in the chain type which wound.

(5) In the above embodiment, the stopper member 20 is provided in a fixed position so that the stopper member 20 is inserted and removed between the rollers 19a arranged side by side in the conveyor portion 19 by raising and lowering the mounting portion 6. The stopper member 20 may be provided in a fixed position so that the stopper member 20 can be inserted and removed between the conveyor 3 and the placement portion 6 by raising and lowering the placement portion 6, and the other embodiment (4). As shown in FIG. 7, when a pair of left and right mounting portions 6 are provided, as shown in FIG. 7, the stopper member 20 is inserted and removed between the pair of mounting portions 6 by raising and lowering the mounting portion 6. The member 20 may be provided in a fixed position.

Perspective view showing lift device Side view of lift device Side view of lift device Sectional plan view of lift device Action diagram showing delivery of goods Top view of lift device The figure which shows the lifting apparatus of another embodiment

Explanation of symbols

DESCRIPTION OF SYMBOLS 3 Conveyor 6 Placement part 8 Base 9 Lifting device 19 Conveyor part 19a Roller 20 Stopper member A Goods

Claims (4)

A lifting device in which a placing portion for placing and supporting an article is configured to be movable up and down between a rising position for delivering the article to a conveyor conveyer provided on the side and a lowered position for placing an article carried in from the outside. Because
The placement unit is configured to include a conveyor portion that places and conveys the placed article to the conveyance conveyor,
In a receiving state for receiving and restricting movement of an article placed on the conveyor unit in a state where the conveyor part protrudes above the conveying surface of the conveyor part at the lowered position, A stopper member that is positioned below the conveying surface of the conveyor portion and is switched to a receiving release state that allows delivery of articles to the conveying conveyor by the conveyor portion, the mounting portion is lowered to the lowered position The lift device is provided in a fixed position so as to be switched to the receiving state and to be switched to the receiving release state when the mounting portion is raised to the raised position.   The lift device according to claim 1, wherein the stopper member is formed of a plate-like body that is wide in a lateral width direction that intersects the transport direction. The mounting section is provided so as to be movable up and down by a lifting device with respect to a base installed on the floor surface,
The lift device according to claim 1, wherein the stopper member is erected on the base. The conveyor portion is configured as a roller type in which a plurality of rollers are arranged in parallel along the conveyance direction,
The lift device according to claim 3, wherein the stopper member is erected on the base so as to insert and remove between the rollers arranged in parallel by raising and lowering the mounting portion.

Images